1989 Ford Mustang Speaker Sizes

The 1989 Ford Mustang speaker size chart provides factory specifications for replacement and aftermarket audio speakers across multiple locations. Information covers dashboard, front door panel, rear deck lid, and rear door panel positions within the audio system. Details include speaker sizes and mounting specifications needed when planning factory speaker replacement or audio system upgrade with aftermarket components.

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Speaker Details by Location
Location Size Type Notes
Dashboard 3.5 Full-Range
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 5.25 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 6x8 Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Door Panel 6x8 Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

1989 Ford Mustang Speaker Replacement Summary

4 total positions
3 easy to replace
1 high priority
0 professional only

Replacement difficulty:

Low: 3 Medium: 1 High: 0

Replacement priority:

High: 1 Medium: 3 Low: 0

1989 Ford Mustang Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN or Double DIN 7"×2" or 7"×4" 180×50 or 180×100 Vehicle supports both radio sizes
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The dashboard location in the 1989 Ford Mustang accommodates 3.5 inch full-range speakers, which may be a lower priority for replacement compared to larger locations due to their limited output capabilities and placement restrictions.
  • Front door panels accept 5.25 inch speakers and offer compatibility with both midbass drivers and full-range units, providing flexibility in component selection based on whether a separate tweeter system is planned.
  • The rear deck lid and rear door panel locations both utilize 6x8 inch oval speakers rather than round configurations, which could potentially offer increased cone surface area compared to similarly sized round alternatives.
  • Full-range speaker types are compatible across all four locations, suggesting a factory system design that did not originally incorporate separate tweeters or crossover networks.
  • Upgrading the front door panel speakers might produce noticeable sound improvement for occupants due to their proximity to listening positions and their compatibility with dedicated midbass drivers.
  • The 1989 Ford Mustang rear locations share identical 6x8 inch specifications, which could simplify replacement planning when selecting matched speaker pairs for the back of the vehicle.
  • Component speaker systems with separate tweeters would likely require custom mounting solutions for the tweeter elements, as the factory locations support full-range designs without dedicated high-frequency driver provisions.
  • The single DIN and double DIN radio compatibility suggests potential for head unit upgrades that could provide improved power output to drive aftermarket speakers more effectively than the original equipment.